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Francon quarry, Montréal, Québec, Canada

Latitude: 45°34'20"N
Longitude: 73°36'50"W
The quarry has been inactive since 1981 and will never be active again. It is in the central part of the city of Montréal (pop. over 2.5 million), in a residential area, and owned by the City. It is used for snow dumping in winter. Actually, the quarry could be listed by its city address: 3701 rue Jarry Est, Montréal.

The island of Montréal is overlaid with limestones which have been intruded by the main Mont Royal (the type Monteregian Hill) alkaline intrusion and numerous genetically related sills and dikes of varying compositions. The dawsonite-rich carbonatite sills of the Francon quarry have a rather unique mineralogy, not found anywhere else in the region.

Mineral List

Aegirine
Albite
'Albite-Anorthite Series'
Almandine
Analcime
Anatase
Ankerite
Baddeleyite
Baryte
'Bastnäsite'
'Biotite'
Brookite
Calcite
Celestine
Cerussite
Chromite
Cristobalite
Crocoite
Cryolite
Dachiardite-Na
Dawsonite
Dickite
Dolomite
Doyleite (TL)
Dresserite (TL)
Elpidite
Fluorapatite
Fluorite
Franconite (TL)
Galena
Garronite
Gibbsite
'Gismondine'
Glauconite
Goethite
Graphite
Gypsum
Halite
'Halloysite'
Halotrichite
Harmotome
Hematite
Hochelagaite (TL)
Humboldtine
Hydrocerussite
Hydrodresserite (TL)
Kaolinite
Magnetite
Marcasite
Microcline
Molybdenite
Montmorillonite
Montroyalite (TL)
Mordenite
Nahcolite
Natrojarosite
Natrolite
'Olivine'
Paratacamite
'Phillipsite'
Phlogopite
Pseudorutile
Pyrite
Pyrochlore Group
Pyrrhotite
Quartz
Rozenite
Rutile
var: Ilmenorutile
Sabinaite (TL)
Saponite
'Serpentine Group'
Siderite
Smythite
Sphalerite
Strontianite
Strontiodresserite (TL)
Sulphur
Synchysite-(Ce)
Talc
Thaumasite
Thenardite
Thorbastnäsite
Viitaniemiite
Voggite (TL)
Weloganite (TL)
Zircon


87 entries listed. 78 valid minerals. 10 type localities (valid minerals).

The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

BONARDI, M., ROBERTS, A.C., and SABINA, A.P. (1981) Sodium-rich dachiardite from the Francon quarry, Montreal Island, Quebec. Canadian Mineralogist, 19, 285-289.

CHAO, G.Y., BAKER, J., SABINA, A.P., and ROBERTS, A.C. (1985) Doyleite, a new polymoprph of Al(OH)3, and its relationship to bayerite, gibbsite and nordstrandite. Canadian Mineralogist, 23, 21-28.

CHEN, T.T., and CHAO, G.Y. (1975) X ray crystallography of weloganite. Canadian Mineralogist, 13, 22 26.

CLARK, G.R., RODGERS, K.A., and HENDERSON, G.S. (1998) The crystal structure of doyleite. Zeitschrift für Kristallographie, 213, 96-100.

CURRIE, K.L.(1976) The Alkaline Rocks of Canada. Geological Survey of Canada, Bulletin 239,207 209.

GAIT, R.I., and GRICE, J.D. (1971) Some observations on weloganite. Canadian Mineralogist, 10, 912. (abstract)

GRICE, J.D. (1989) Famous Mineral Localities of Canada. Fitzhenry & Whiteside, Markham, Ontario, 190 p. (109 114)

GRICE, J.D. and PERRAULT, G. (1975) The crystal structure of triclinic weloganite. Canadian Mineralogist, 13, 209 216.

HARRINGTON, B.J. (1875) Notes on dawsonite, a new carbonate. The Canadian Naturalist and Quarterly Journal of Science, VII(6), 305-309.

JAMBOR, J.L., FONG, D.G., and SABINA, A.P. (1969) Dresserite, the new barium analogue of dundasite. Canadian Mineralogist, 10, 84-89.

JAMBOR, J.L., PLANT, A.G., and STEACY, H.R. (1976) A dawsonite-bearing
silicocarbonatite sill from Montreal Island, Quebec. Geological Survey of Canada Paper, 76-1B, 357-362.

JAMBOR, J.L., SABINA, A.P., RAMIK, R.A., and STURMAN, B.D. (1990) Fluorine-bearing gibbsite-like mineral from the Francon quarry, Montreal, Quebec. Canadian Mineralogist, 28, 147-153.

JAMBOR, J.L., SABINA, A.P., ROBERTS, A.C. and STURMAN,B.D. (1977)
Strontiodresserite, a new Sr-Al carbonate from Montreal Island, Quebec. Canadian Mineralogist, 15, 405-407.

JAMBOR, J.L., SABINA, A.P., and STURMAN,B.D. (1977) Hydrodresserite, a new Ba-Al carbonate from a silicocarbonatite sill, Montreal Island, Quebec. Canadian Mineralogist, 15, 399-404.

JAMBOR, J.L., SABINA, A.P., ROBERTS, A.C., BONARDI, M., RAMIK, R.A., and STURMAN, B.D. (1984) Franconite, a new hydrated Na Nb oxide mineral from Montreal Island, Quebec. Canadian Mineralogist, 22, 239 243.

JAMBOR, J.L., SABINA, A.P., ROBERTS, A.C., BONARDI, M., OWENS, D.R., and STURMAN, B.D. (1986) Hochelagaite, a new calcium niobium oxide mineral from Montreal, Quebec. Canadian Mineralogist, 24, 449 453.

JAMBOR, J.L., STURMAN, B.D., and WEATHERLY, G.C. (1980) Sabinaite, a new hydrous zirconium bearing carbonate mineral from Montreal Island, Quebec. Canadian Mineralogist, 18, 25 29.

McDONALD, A.M. (1996) The crystal structure of sabinaite, Na4Zr2TiO4(CO3)4. Canadian Mineralogist, 34, 811 815.

RAMIK, R.A., STURMANN, B.D., ROBERTS, A.C., and DUNN, P.J. (1983) Viitaniemiite from the Francon Quarry, Montreal, Quebec. Canadian Mineralogist, 21, 499-502.

ROBERTS, A.C. (1978) The space group of strontiodresserite. Geological Survey of Canada, Paper 78-1B, 180.

ROBERTS, A.C., SABINA, A.P., BONARDI, M., JAMBOR, J.L., RAMIK, R.A.,
STURMAN,B.D., and CARR, M.J. (1986) Montroyalite, a new hydrated Sr-Al hydroxycarbonate from the Francon quarry, Montreal, Quebec. Canadian Mineralogist, 24, 455-459.

ROBERTS, A.C., SABINA, A.P., ERCIT, T.S., GRICE, J.D., SZYMASKI, J.T., and RAMIK, R.A., (1990) Voggite, a new hydrated Na-Zr hydroxide-phosphate-carbonate from the Francon quarry, Montreal, Quebec. Canadian Mineralogist, 28, 155-159.

SABINA, A.P. (1976) The Francon Quarry, a mineral locality. Geological Survey of Canada, Paper 76-1B, 15-19.

SABINA, A.P. (1978) Some new mineral occurrences in Canada. Geological Survey of Canada, Paper 78-1A, 253-258.

SABINA, A.P. (1979) Minerals of the Francon quarry (Montreal Island): a
progress report. Geological Survey of Canada, Paper 79-1A, 115-120.

SABINA, A.P. (1968), revised (1983) Rocks and Minerals for the collector. Kingston, Ontario to Lac St Jean, Quebec. Geological Survey
of Canada paper 67 51 (1968), Misc. Report No. 32 (1983), 46 49.

SABINA, A.P., JAMBOR, J.L., and PLANT, A.G. (1968) Weloganite, a new strontium zirconium carbonate from Montreal Island, Canada. Canadian Mineralogist, 9, 468-477.

STEACY, H.R., and JAMBOR, J.L. (1969) Nature, distribution and content of zirconium and niobium in a silico-carbonatite sill at St-Michel Montreal Island, Quebec. Geological Survey of Canada, Paper 69-20, 1-7.

SZYMANSKI, J.T. (1982) The crystal structure of hydrodresserite. Canadian Mineralogist, 20, 253-262.

SZYMANSKI, J.T., and ROBERTS, A.C. (1990) The crystal structure of voggite, a new hydrated Na-Zr hydroxide-phosphate-carbonate mineral. Mineralogical Magazine, 54, 495-500.

TARASSOFF, P. (2013) Dawsonite, a Montreal mineral. Mineralogical Record 44,57-76.

TARASSOFF, P. , HORVÁTH, L. and PFENNINGER-HORVÁTH, E. (2006) Famous mineral localities: the Francon quarry, Montréal, Québec. The Mineralogical Record, 37, 5-60.

TARASSOFF, P. (2013) Dawsonite, a Montreal mineral. Mineralogical Record 44,57-76.

TARASSOFF, P., HORVÁTH, L. and PFENNINGER-HORVÁTH, E. (2006) Francon Revisited. Mineralogical Record 37, 257-263

VARD, E., and WILLIAMS-JONES, A.E. (1993) A fluid inclusion study of vug minerals in dawsonite-altered phonolite sills, Montreal, Quebec: implications for HFSE mobility. Contributions to Mineralogy and Petrology, 113, 410-423.


This page kindly sponsored by Frank Ruehlicke

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